fa4ba8da6c
Add support for hardware watchpoints on win32 native. * win32-nat.c (CONTEXT_DEBUG_DR macro): Add use of CONTEXT_DEBUG_REGISTERS. (dr variable): New variable. Static array containing a local copy of debug registers. (debug_registers_changed): New variable. Reflects when debug registers are changed and need to be written to inferior. (debug_registers_used): New variable. Reflects when any debug register was set, used when new threads are created. (cygwin_set_dr, cygwin_set_dr7, cygwin_get_dr6): New functions used by i386-nat code. (thread_rec): Set dr array if id is the thread of current_event . (child_continue, child_resume): Change the debug registers for all threads if debug_registers_changed. (child_add_thread): Change the debug registers if debug_registers_used. * config/i386/cygwin.mh: Add use of i386-nat.o file. Link nm.h to new nm-cygwin.h file. + config/i386/nm-cygwin.h: New file. Contains the macros used for use of hardware registers.
38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
/* Native definitions for Intel x86 running CYGWIN.
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#define NO_PTRACE_H
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#define I386_USE_GENERIC_WATCHPOINTS
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#include "i386/nm-i386.h"
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/* Support for hardware-assisted breakpoints and watchpoints. */
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#define I386_DR_LOW_SET_CONTROL(VAL) cygwin_set_dr7 (VAL)
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extern void cygwin_set_dr7 (unsigned);
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#define I386_DR_LOW_SET_ADDR(N,ADDR) cygwin_set_dr (N,ADDR)
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extern void cygwin_set_dr (int, CORE_ADDR);
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#define I386_DR_LOW_RESET_ADDR(N)
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#define I386_DR_LOW_GET_STATUS() cygwin_get_dr6 ()
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extern unsigned cygwin_get_dr6 (void);
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